Hair brush



FIG. 1 is a perspective view of a hair brush showing my new design.

FIG. 2 is a front or rear view thereof.

FIG. 3 is a left side or right side view thereof.

FIG. 4 is a top view thereof; and,

FIG. 5 is a bottom view thereof.

To show the clarity of my design, hair brush bristles have not been show. 

CLAIM The ornamental design for a hair brush, as shown. 